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Epam-systems Master DSA Sheet

This compilation contains exclusive, previously asked data structure and algorithm questions from real Epam-systems interviews. Focus on these core problem patterns to confidently tackle even the hardest interview challenges.

top-specificepam-systems-prep
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51
Reverse Linked List
Easy
Asteroid Collision
Medium
Valid Parentheses6 Months
Easy
Pow(x, n)
Medium
Trapping Rain Water
Hard
Count Salary Categories
Medium
Longest Palindromic Substring
Medium
Longest Substring Without Repeating Characters
Medium
Generate Parentheses
Medium
Merge Intervals
Medium
First Missing Positive
Hard
Two Sum6 Months
Easy
Roman to Integer
Easy
Longest Common Prefix
Easy
Move Zeroes3 Months
Easy
Search in Rotated Sorted Array
Medium
String Compression
Medium
Merge Sorted Array3 Months
Easy
Two Sum II - Input Array Is Sorted
Medium
Reverse Words in a String
Medium
Maximum Subarray
Medium
Edit Distance
Medium
Multiply Strings
Medium
Palindrome Number
Easy
Partition Equal Subset Sum
Medium
Reverse String
Easy
Valid Anagram6 Months
Easy
Best Time to Buy and Sell Stock
Easy
3Sum
Medium
Rotate Array
Medium
Top K Frequent Elements
Medium
Group Anagrams6 Months
Medium
Valid Palindrome
Easy
Add Two Numbers
Medium
First Unique Character in a String
Easy
Longest Consecutive Sequence
Medium
Duplicate Emails
Easy
Remove Duplicates from Sorted Array
Easy
Sort Characters By Frequency
Medium
Unique Paths
Medium
House Robber
Medium
Reverse Linked List II
Medium
Kth Largest Element in an Array
Medium
Coin Change
Medium
Reverse Vowels of a String
Easy
Reverse Integer
Medium
Counter6 Months
Easy
Binary Search
Easy
Running Sum of 1d Array
Easy
Minimum Operations to Make a Uni-Value Grid
Medium
Maximum Difference Between Node and Ancestor
Medium